Engineering
Engineering MCQs With Answers
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In a Bode magnitude plot, a single pole located at the origin contributes a constant slope of:
A+20 dB/decade
B-6 dB/decade
C-20 dB/decade
D-40 dB/decade
The Laplace transform of a unit step function u(t) is given by:
As
B1 / s
C1
D1 / s^2
Transfer function of a system is defined as the ratio of Laplace transform of output to Laplace transform of input under which condition?
AAll initial conditions set to zero
BInput voltage set to zero
CSystem operates at resonance
DFrequency is equal to zero
According to Shannon-Hartley theorem, the channel capacity C in bits per second is expressed as:
AC = 2 * B * log2(SNR)
BC = B / log2(1 + SNR)
CC = B * log2(1 + SNR)
DC = B * log10(1 + SNR)
The Fourier Transform of a continuous-time Dirac Delta function delta(t) is equal to:
A1
B0
C2 * pi
D1 / s
The maximum theoretical conversion efficiency of a Class B push-pull power amplifier is approximately:
A50.0%
B25.0%
C90.0%
D78.5%
Common Mode Rejection Ratio (CMRR) of an ideal Op-Amp is:
AUnity
BInfinite
CZero
D100
The voltage gain of an inverting operational amplifier circuit with feedback resistor R_f and input resistor R_in is:
A-R_f / R_in
B-R_in / R_f
C1 + (R_f / R_in)
DR_in / R_f
The standard secondary current rating for a Current Transformer (CT) used in power system protection is usually:
A0.1 A or 0.5 A
B1 A or 5 A
C10 A or 20 A
D100 A
Slew Rate of an operational amplifier (Op-Amp) is defined as the maximum rate of change of:
AInput voltage with respect to frequency
BOutput voltage with respect to time
CCommon-mode rejection ratio with frequency
DOpen-loop gain with respect to temperature